The press filtration testboard
Technical field
The present invention relates to the mechanism filter-pressing apparatus field, particularly relate to a kind of press filtration testboard.
Background technology
Filter press is a kind of solid-liquid separating equipment that is applied to Chemical Manufacture, particularly for filtering sticking thin material, its unique superiority is arranged.Compare with other solid-liquid separating equipments, the mud cake behind the Filter Press has higher solid content and good separating effect.The basic principle of Separation of Solid and Liquid is: mixed liquor is through filter medium (filter cloth), and solid rests on the filter cloth, and piles up formation filter mud cake at filter cloth gradually, and the filtrate part then sees through filter cloth, becomes the clear liquid that does not contain solid.
Existing filter press is big scale production equipment, and it is comprised of Large Scale Mechanical Structures such as frame, hold-down mechanism, filter mechanisms, and is not suitable for the required low dose of press filtration test in laboratory.The low dose of press filtration test in laboratory does not also have reliable way, enterprise mostly to take the method simulation press filtration of negative pressure leaching at present.Suction filtration is to utilize aspiration pump that the pressure in the bottle,suction is reduced, and reaches the purpose of Separation of Solid and Liquid.Yet pressure is malleation under the press filtration working condition, and the suction filtration condition is negative pressure, so analog result can be low with reference to property.
Summary of the invention
For addressing the above problem, the object of the invention is to provide a kind of filtering equipment that is applicable to the low dose of press filtration test in laboratory, can simulate actual production process by working condition, and it has the advantage that volume is little, easy to operate, the Separation of Solid and Liquid rate is high.
The present invention addresses the above problem the technical scheme that adopts to be:
The press filtration testboard comprises:
Objective table, it has a hollow structure, this hollow structure is formed with filter chamber, filter cloth bag as filter medium is installed in the described filter chamber, during use first the slurry to be filtered filter cloth bag of packing into, again filter cloth bag is mounted on the filter chamber and waits for by press filtration, will guarantee during installation that filter cloth is smooth not give a discount that the aperture is unimpeded;
Location-plate, it is connected with objective table by many support bars, and described location-plate is provided with a plurality of screws, and described support bar passes screw and is fixedly connected with location-plate by locking nut;
Hold down gag, it comprises thrust plate, pressure strip, helical Bourdon tube and many depression bars, and the bottom of described helical Bourdon tube is fixed on the pressure strip, and apical support thrust plate; One end of described depression bar is fixed on the thrust plate, and the other end is mobilizable to be passed the screw of location-plate and fix by locking nut.Promote depression bar during use, it is downward that depression bar drives thrust plate, and helical Bourdon tube is subject to thrust plate and promotes rear supercharging, pressure strip is pushed to objective table, at last lock nut is tightened, thereby pressure strip is pressed on the objective table, after press filtration is complete, unclamps locking nut and helical Bourdon tube is retreated unclamp;
Filter, it is a projective structure that is arranged at described pressure strip bottom surface, comprise filter frame and be installed in the interior filter plate of filter frame, the shape size of described filter frame and filter chamber cooperatively interacts, when pressure strip was pressed on the objective table, filter frame and filter plate were pressed into simultaneously in the filter chamber slurry in the filter cloth bag are carried out press filtration;
Water outlet is chewed, it comprises the perforate that is arranged on filter frame, the pressure strip, and the perforate consistency from top to bottom of the perforate of filter frame and pressure strip, after slurry is pressed, the solid constituent of the material in the filter cloth bag is owing to the aperture of its particle diameter greater than filter medium (filter cloth) is trapped within the filter chamber, solid constituent forms filter residue in filter cloth bag, filtrate is then chewed discharge through the water outlet on filter frame and the pressure strip.
Further, be provided be used to the gasket seal that prevents that slurries from overflowing between described filter frame and the filter plate.
Further, the body of rod of described support bar and depression bar is equipped with screw thread, and locking nut is by the screw-threaded coupling on the mesh rod.
Further, described objective table both sides are provided with for the leveling bolt of regulating the testboard levelness, and this equipment can be put on platform reposefully.
Further, for keeping thrust plate and pressure strip steady, have at least a support bar to be arranged in described thrust plate and pressure strip plays the firm support effect.
The invention has the beneficial effects as follows: the present invention is a kind of press filtration testboard that is applicable to the low dose of press filtration test in laboratory, adopt the pressure under the helical Bourdon tube supercharging simulation working condition, adopt high-power infusion to enter material realization supercharging with working condition and compare, the present invention adopts the helical Bourdon tube supercharging simpler and low-cost.In addition, filter cloth bag used in the present invention can take out easily, and this is so that change the more convenient to operate of filter cloth bag or material under the laboratory condition.The present invention is simple to operate, failure rate is low, and the condition of production of the large-scale press filtration of energy simple analog is for being a kind of manual simplified pressure filter experiment equipment that is suitable in the laboratory popularization.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing and example.
Fig. 1 is the structural representation of the present invention under open mode;
Fig. 2 is the structural representation under the present invention in working order;
Fig. 3 is the schematic diagram of filter among the present invention.
The specific embodiment
With reference to Fig. 1-Fig. 2, a kind of press filtration testboard of the present invention comprises:
Objective table 1, it has a hollow structure, this hollow structure is formed with filter chamber 2, filter cloth bag 11 as filter medium is installed in the described filter chamber 2, during use first the slurry to be filtered filter cloth bag 11 of packing into, again filter cloth bag 11 is mounted on the filter chamber 2 and waits for by press filtration, will guarantee during installation that filter cloth bag 11 is smooth not give a discount that the aperture is unimpeded;
Location-plate 3, it is connected with objective table 1 by many support bars 4, and described location-plate 3 is provided with a plurality of screws, and described support bar 4 passes screw and is fixedly connected with location-plate 3 by locking nut 14;
Hold down gag, it comprises thrust plate 5, pressure strip 6, helical Bourdon tube 8 and many depression bars 7, and the bottom of described helical Bourdon tube 8 is fixed on the pressure strip 6, and apical support thrust plate 5; One end of described depression bar 7 is fixed on the thrust plate 5, and the mobilizable screw that passes location-plate 3 of the other end is also fixed by locking nut 14.Promote depression bar 7 during use, it is downward that depression bar 7 drives thrust plate 5, helical Bourdon tube 8 is subject to thrust plate 5 and promotes rear supercharging, pressure strip 6 is pushed to objective table 1, at last lock nut 14 is tightened, thereby pressure strip 6 is pressed on the objective table 1, after press filtration is complete, unclamps locking nut 14 on the depression bar and helical Bourdon tube 8 is retreated unclamp;
Filter, it is a projective structure that is arranged at described pressure strip 6 bottom surfaces, comprise filter frame 9 and be installed in filter plate 10 in the filter frame 9, wherein the structure of filter frame 9 and filter plate 10 and shape are with reference to Fig. 3, described filter frame 9 cooperatively interacts with the shape size of filter chamber 2, when pressure strip 6 was pressed on the objective table 1, filter frame 9 and filter plate 10 were pressed into simultaneously in the filter chamber 2 slurry in the filter cloth bag 11 are carried out press filtration;
Water outlet chews 12, it comprises the perforate that is arranged on filter frame 9, pressure strip 6, and the perforate consistency from top to bottom of the perforate of filter frame 9 and pressure strip 6, after slurry is pressed, the solid constituent of the material in the filter cloth bag 11 is because its particle diameter is trapped within 2 li of filter chambers greater than the aperture of filter medium (filter cloth), solid constituent is at filter cloth bag 11 interior formation filter residues, and filtrate is then chewed 12 through the water outlet on filter frame and the pressure strip and discharged.
Further, be provided be used to the gasket seal 13 that prevents that slurries from overflowing between described filter frame 9 and the filter plate 10.
Further, the body of rod of described support bar 4 and depression bar 7 is equipped with screw thread, and locking nut 14 is by the screw-threaded coupling on the mesh rod.
Further, described objective table 1 both sides are provided with for the leveling bolt 15 of regulating the testboard levelness, and this equipment can be put on platform reposefully.
Further, for keeping thrust plate 5 and pressure strip 6 steady, have at least a support bar 4 to be arranged in described thrust plate 5 and pressure strip 6 plays the firm effect of supporting.
Specific works process of the present invention is: the slurry that will filter the first filter cloth bag 11 of packing into, again filter cloth bag 11 is installed in the filter chamber 2, and to guarantee during installation that filter cloth bag 11 is smooth not give a discount that the aperture is unimpeded.Compress filter plate with the large-scale filter press of production usefulness with hydraulic jack and compare, the press filtration testboard that use in this laboratory adopts the method for manual spiral to carry out press filtration.Promote depression bar 7 during use, it is downward that depression bar 7 drives thrust plate 5, and helical Bourdon tube 8 is subject to thrust plate 5 and promotes rear supercharging, and pressure strip 6 is pushed to objective table 1, at last lock nut 14 is tightened, thereby pressure strip 6 is pressed on the objective table 1.Filter frame 9 and filter plate 10 are pressed into filter chamber 2 simultaneously, the slurries in the filter cloth bag 11 are squeezed, wherein the solid constituent of slurry because of its particle diameter greater than filter medium at filter cloth bag 11 interior formation filter residues, filtrate is then chewed 12 through water outlet and is discharged.After press filtration is complete, unclamps locking nut 14 helical Bourdon tube 8 is retreated, take out filter cloth bag 11, obtain filter residue.
The above is preferred embodiment of the present invention, and the present invention is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present invention with identical means, all should belong to protection scope of the present invention.